摘要
[目的]调频作为电力系统稳定运行的机制与保障,其辅助服务市场化已提上日程。电能量-调频联合优化成为一种市场组织模式。以PJM市场为研究大背景,对考虑调频资源性能差异的电能量-调频市场联合优化模式进行研究。[方法]通过建立调频辅助服务定价调整模型,以及电能量-调频联合优化模型,应用于某实际省级电网进行仿真,设置丰水期、枯水期典型场景,并与国内电能量-调频分阶段出清模式进行对比,从调频资源出清、对现货市场购电费用影响、调频市场活跃程度三个方面进行详细研究。[结果]分阶段模式下,快速调频资源具有明显优势,且造成电能量市场购电费用上升。电能量-调频联合优化模式中,快慢调频资源出清结果受定价调整策略影响,电能量市场购电费用上升幅度较分阶段模式小,且其调频市场出清价格以及波动程度均较分阶段模式高。[结论]具有合理价格调整策略的电能量-调频联合优化模式有助于实现调频性能差异机组合理竞争,激发市场活力。
[Introduction]As the guarantee for the stable of the power system,the marketization of the regulation auxiliary service has been put on the agenda.The energy-regulation joint optimization becomes a mode of market organization.This paper aims to study the combined optimization model of the electric energy-regulation market considering the performance difference of frequency modulation resources in the PJM market background.[Method]Regulation auxiliary service pricing adjustment model and the joint clearing model of electric energy and regulation market considering the difference of fast and slow regulation resources and regulation performance was proposed in this paper,which were applied to the simulation of a real power grid to compared with domestic electric energy-regulation step clearing market.Two typical scenarios were set up in wet season and dry season.The clearing of regulation resources,the influence on the electricity purchase cost in the spot market and the active degree of regulation market were studied in detail.[Result]In the stepwise clearing mode,the rapid regulation resource has obvious advantages and causes the increase of electricity purchase cost in the electricity market.In the electricity-regulation joint optimization model,the clearing results of fast and slow regulation resources are affected by the pricing adjustment strategy and the increase rate of electricity purchase costs in the power market is smaller than that in the stepwise model,and the clearing price and fluctuation degree in the regulation market are higher than that in the stepwise clearing mode model.[Conclusion]The combined optimization mode of electric-regulation modulation with reasonable price adjustment strategy is helpful to realize reasonable competition among units with different regulation performance and stimulate market vitality.
作者
李舒佳
谢敏
李建钊
黄彬彬
林盛振
LI Shujia;XIE Min;LI Jianzhao;HUANG Binbin;LIN Shengzhen(School of Electric Power,South China University of Technology,Guangzhou 510640,China)
出处
《南方能源建设》
2020年第3期55-61,共7页
Southern Energy Construction
基金
广东省自然科学基金项目“含高维动态相依新能源的电力系统经济调度随机优化理论与方法研究”(2018A0303130134)。
关键词
调频市场
电能量市场
联合优化
分步出清
regulation market
electric energy market
joint optimization
stepwise optimization
